#!/usr/bin/env python
# encoding: utf-8

"""
@version: python3.7
@Author  : huangyi
@contact:  hy.dazui@qq.com
@Time    : 2020/1/10 0:39
@Describe: add Describe here
"""
from abc import ABC

from app.expression.abs_expression import AbsExpression


class NonterminalExpression(AbsExpression, ABC):
    """
    非终结符解释器
    """
    pass
